Krishna
0

Step 1: Arrange the numbers from least to greatest and find the number in the middle.

                 GIVEN: 73, 75, 63, 56, 80, 29, 54


                         Least to greatest

                            29, 54, 56, 63, 73, 75, 80

                        There are 7 numbers (odd)

                   So, middle value is the median

                                median = 63


Step 2: Replace the number and find the new median

           GIVEN: Replace 80 with 40 and find the new median.


                          29, 40, 54, 56, 63, 73, 75

                                    n = 7 (odd)

                        Middle value is the median

                           The new median would be 56.


                         The median would decrease from 63 to 56.